3D printing supplies technology and the rise of intelligent manufacturing

1, technical principles
The American Society for Materials and Testing (ASTMF42) defines the production of reinforced materials: a consumption process that focuses on the integration of materials based on three-dimensional data. In accordance with this authority definition, material manufacturing must be driven by data. 3D printing supplies technology is a series of material manufacturing technology collectively, the fundamental principle is the manufacture of laminated, that is, by the rapid prototyping machine in the XY axis coordinate direction to generate the object of the cross-sectional shape, and then in the Z-axis coordinates for continuous layer thickness Of the displacement, and ultimately constitute a three-dimensional parts. In the most part of human history, we cut raw materials or mold forming to create new physical items, such as casting (isoform manufacturing) or cutting drilling (cut material manufacturing).
Most people first heard 3D printing supplies, they thought of the traditional desktop printer. 3D printing supplies and traditional printing is very similar, are completed by the data-driven hardware to print. In general, people use conventional inkjet printers to stop printing, the process is this: light the computer screen "print" button, a digital file will be sent to an inkjet printer, then the printer will be a Layer ink is sprayed onto the paper to form a two-dimensional image. The same is true with the 3D printer, the control software completes a series of digital slices via a slice engine (which combines the plane model into multiple cross sections) and then transfers the slice information to the 3D printing consumables, which stops Print side by layer, then stack them up until a solid object is molded.
On the end user's practical experience, often do not feel the 3D printing supplies and traditional printing in the manufacturing process on the difference, can feel the biggest difference is that the use of "ink" is really real original information, it is Because of this similar, the material manufacturing technology will be vividly known as the 3D printing supplies technology.
In fact, both in the print data and the principle there is a big difference. 3D printing supplies can be divided into two categories of metal and non-metallic, including solid, liquid, powder, etc., each type of data corresponds to one or more of the printing principle. On the equipment users, the main difference between 3D printing supplies and traditional printing is the computer to be designed is a good three-dimensional plane model, and then stop the print output. Thus, 3D printing supplies are far more complex than traditional printing.
Traditional prints are compared to 3D printing supplies
3D printing supplies process generally includes data acquisition, data processing, printing and post-disposal four steps. The first two steps mainly touched on software and optical imaging techniques, and the third step touched on data, machinery and electronics. The first three steps complement each other, any one of the problems will affect the printing of the final results. Post-processing steps are more traditional methods of use to improve the appearance and characteristics of printed items.
As the print technology and the most common areas, the industry's focus is generally focused on the printing steps. Most of the central technology of 3D printing supplies is also coiled around this step.
2, technical categories
3D printing supplies technology to date, in the initial foundation has been derived from dozens of printing technology, based on different principles have different classification. We list three different classification methods according to different printing principle, the difference of consumables and forming principle and printing consumables.
The ASTMF42 High Definition Manufacturing Technical Committee classifies the printing principles into seven categories in its published Glossary of Technical Terms for Reinforcement (ASTM F2792-12a).
3D printing supplies technology classification (based on the printing principle)
According to the use of consumables and forming the principle of the difference, the current mainstream 3D printing supplies technology can be divided into extrusion melt molding, granular material molding, photopolymerization and other three varieties. Each type of molding technology according to the different, but also evolved a number of varieties. Among them, the molten laminated (FDM) belongs to the extrusion melt molding type, the granular material molding type includes direct metal laser sintering (DMLS), electron beam melting (EBM), selective laser sintering (SLS), selective hot sintering (SHS) , Selective laser coagulation (SLM), photopolymerization, including photocurable molding (SLA), digital light handling (DLP), polymer radiation (PI).
With the development of technology and market demand from time to time, based on the typical 3D printing supplies technology derived from some new technologies, such as gypsum 3D printing supplies (PP), layered physical manufacturing (LOM), three-dimensional printing (3DP), electron beam Molding (EBF), laser light manufacturing (LENS) and so on.
3D printing supplies technology classification (based on material form and forming principle)
If the variety of printing supplies based on different, 3D printing supplies technology can be divided into non-metallic 3D printing supplies technology and metal 3D printing supplies technology. Among them, FDM, SLA, DLP, 3DP and other non-metallic 3D printing supplies technology; SLM, DMLS, EBM, etc. are metal materials, 3D printing supplies technology.